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math.CO2013★ 8 cited
Periodicity of the last digits of some combinatorial sequences
István Mező
In 1962 O. A. Gross proved that the last digits of the Fubini numbers (or surjective numbers) have a simple periodicity property. We extend this result to a wider class of combinat…
math.CO2007★ 20 cited
Real Zeros and Partitions without singleton blocks
Miklós Bóna, István Mező
We prove that the generating polynomials of partitions of an -element set into non-singleton blocks, counted by the number of blocks, have real roots only and we study the asymp…